Add a couple component tests for OpenInDesktopAppHandler

src/components/OpenInDesktopAppHandler.test.tsx

@@ -0,0 +1,68 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import { BrowserRouter, Route, Routes, useNavigate } from 'react-router-dom'
+import { SettingsAuthProviderJest } from './SettingsAuthProvider'
+import { CommandBarProvider } from './CommandBar/CommandBarProvider'
+import { OpenInDesktopAppHandler } from './OpenInDesktopAppHandler'
+import { vi } from 'vitest'
+import { useEffect, useState } from 'react'
+
+function TestWrap({
+  children,
+  location,
+}: {
+  location?: string
+  children: React.ReactNode
+}) {
+  return (
+    <Routes location={location}>
+      <Route
+        path="/"
+        element={<OpenInDesktopAppHandler>{children}</OpenInDesktopAppHandler>}
+      />
+    </Routes>
+  )
+}
+
+describe('OpenInDesktopAppHandler tests', () => {
+  test(`does not render the modal if no query param is present`, () => {
+    render(
+      <BrowserRouter>
+        <TestWrap>
+          <p>Dummy app contents</p>
+        </TestWrap>
+      </BrowserRouter>
+    )
+
+    const dummyAppContents = screen.getByText('Dummy app contents')
+    const modalContents = screen.queryByText('Open in desktop app')
+
+    expect(dummyAppContents).toBeInTheDocument()
+    expect(modalContents).not.toBeInTheDocument()
+  })
+
+  test(`renders the modal if the query param is present`, () => {
+    render(
+      <BrowserRouter>
+        <TestWrap location="/?askToOpenInDesktop">
+          <p>Dummy app contents</p>
+        </TestWrap>
+      </BrowserRouter>
+    )
+
+    let dummyAppContents = screen.queryByText('Dummy app contents')
+    let modalButton = screen.queryByText('Continue to web app')
+
+    // Starts as disconnected
+    expect(dummyAppContents).not.toBeInTheDocument()
+    expect(modalButton).not.toBeFalsy()
+    expect(modalButton).toBeInTheDocument()
+    fireEvent.click(modalButton as Element)
+
+    // I don't like that you have to re-query the screen here
+    dummyAppContents = screen.queryByText('Dummy app contents')
+    modalButton = screen.queryByText('Continue to web app')
+
+    expect(dummyAppContents).toBeInTheDocument()
+    expect(modalButton).not.toBeInTheDocument()
+  })
+})